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Air Sourced Heat Pump.

A person today that I was talking to, that has had a new build home which was required by building regs. to have an air sourced heat pump for heating and hot water, complained that the system was slow to heat or cool as required. He said that he had to have underfloor heating installed. It was slow to warm the rooms on cold days. He recently had the system set to cool the rooms on the very hot recent days. But this morning was cooler and he required heating. Is this normal?


Z.
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  • Zoomup:

    A person today that I was talking to, that has had a new build home which was required by building regs. to have an air sourced heat pump for heating and hot water, complained that the system was slow to heat or cool as required. He said that he had to have underfloor heating installed. It was slow to warm the rooms on cold days. He recently had the system set to cool the rooms on the very hot recent days. But this morning was cooler and he required heating. Is this normal?


    Z.




    Lets go back to the original post:



    • It is a new build home, therefore it should have all the required insulation.

    • The user complained it is slow to respond, that suggests a lack of understanding of how to operate the system.

    • The user has an issue because the system was set to chill the floor, but then wanted heating instead, so presumably it took at least twice as long to heat up, which is not a fault with the system unless there are external weather sensors to determine the outdoor temperature so that it can optimise the system to reach the desired room temperature at specific times.


    All in all it suggests user error or a lack of understanding as to how the system operates, assuming of course that a decent control system was installed in the first place. It is not a fast reacting system, it needs time to run and it should not be turned off, the temperature should merely be adjusted throughout the day, so the system is simply raising the temperature rather than heating from cold, bearing in mind that if the home is well insulated the heat losses will be low.
Reply
  • Zoomup:

    A person today that I was talking to, that has had a new build home which was required by building regs. to have an air sourced heat pump for heating and hot water, complained that the system was slow to heat or cool as required. He said that he had to have underfloor heating installed. It was slow to warm the rooms on cold days. He recently had the system set to cool the rooms on the very hot recent days. But this morning was cooler and he required heating. Is this normal?


    Z.




    Lets go back to the original post:



    • It is a new build home, therefore it should have all the required insulation.

    • The user complained it is slow to respond, that suggests a lack of understanding of how to operate the system.

    • The user has an issue because the system was set to chill the floor, but then wanted heating instead, so presumably it took at least twice as long to heat up, which is not a fault with the system unless there are external weather sensors to determine the outdoor temperature so that it can optimise the system to reach the desired room temperature at specific times.


    All in all it suggests user error or a lack of understanding as to how the system operates, assuming of course that a decent control system was installed in the first place. It is not a fast reacting system, it needs time to run and it should not be turned off, the temperature should merely be adjusted throughout the day, so the system is simply raising the temperature rather than heating from cold, bearing in mind that if the home is well insulated the heat losses will be low.
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